Girl. I have two silkie/cochin roos and they have huge combs. They are also not afraid of anything. My big Ameraucana roo was trying to mount a hen today and one of those little buggers went right over there and knocked him off. Cracks me up!
I don't think" she" is crossed with a cochin. This is what my cochin silkie hen looks like
Yours looks like it is mixed with more of a game hen body type, because of the upright tail. My "roo's in the making" were (and one of them still is) the biggest wimps around the hens, so being outgoing doesn't mean you have a cockerel